Integrated part of air suction sealing plate and oil baffle plate, compressor and fluid mechanical equipment

Abstract

The utility model relates to an integrated part of an air suction sealing plate and an oil baffle plate, a compressor and fluid mechanical equipment. The integrated part of the air suction sealing plate and the oil baffle plate is arranged between a rotor and a rotor bearing of the compressor, so that the air suction sealing plate is attached to the rotor air suction end face of a compressor body, and the oil baffle plate abuts against the rotor bearing. The integrated piece of the air suction sealing plate and the oil baffle plate comprises a male sub-integrated piece and a female sub-integrated piece. The male sub-integrated piece comprises a male air suction sealing plate and a male oil baffle plate which are combined together through a male connecting part. And the female sub-integrated piece comprises a female air suction sealing plate and a female oil baffle plate which are combined together through a female connecting part. The male connecting part and the female connecting part are fixed in a mutually attached mode, so that after assembly, the male air suction sealing plate and the female air suction sealing plate are attached to the rotor air suction end face of the compressor body in the same plane. According to the integrated part of the air suction sealing plate and the oil baffle plate, the compressor rotor and the rotor bearing can be blocked, the air suction end face of the rotor is at least partially blocked, and / or it is ensured that refrigeration oil exists at the rotor bearing.

Description

Technical Field

[0001] The present disclosure relates to the field of fluid mechanical equipment, and in particular to an integrated component of a suction seal plate and an oil baffle plate, a compressor having the integrated component, and a fluid mechanical equipment. The integrated component of the suction seal plate and the oil baffle plate can be suitable for providing suction sealing and oil storage controllability for a compressor such as a screw compressor. Background Art

[0002] In screw compressors, the suction seal is divided into radial seal structure and axial seal structure. For the axial seal structure, such as Figure 1A and Figure 1B As shown, the conventional axial sealing structure 10 is a separate part connected to the suction end face 24 of the compressor body 20. Since there is a body sharp corner 22 at the intersection line of the two rotor cavities of the compressor body 20, it is necessary to design an avoidance hole 12 to avoid the body sharp corner 22 (such as Figure 1C As shown). Therefore, there is a gap 30 between the avoidance hole 12 and the compressor body 20, which causes leakage when the compressor inhales air, resulting in poor air intake sealing performance, affecting the reliability of the compressor.

[0003] In addition, in screw compressors, bearings cannot do without the lubrication and cooling of refrigeration oil. During the working process, there must be enough refrigeration oil around the bearings at all times to ensure the reliable operation of the rotating mechanism (for example, the compressor rotor) where the bearings are located and the compressor as a whole. Especially when the compressor is started for the first time and before starting after a long period of shutdown, the refrigeration oil must be around the bearings in advance to ensure that the bearings are in an "oil lubricated and cooled" state when they move. However, too much oil will hinder the rotation of the rotor when the rotor rotates at high speed, so that the rotor needs to increase the "refrigeration oil stirring work" in addition to the normal work, which is undesirable. In short, the refrigeration oil in the compressor needs to be ensured to be present around the bearings at all times but not too much. Therefore, it is necessary to ensure that there is an appropriate amount of refrigeration oil around the bearings to ensure reliable and efficient operation of the compressor. Utility Model Content

[0004] One purpose of the present disclosure is to solve the leakage problem caused by incomplete air sealing in existing air sealing devices.

[0005] Another object of the present disclosure is to solve the problem of oil accumulation in the compressor.

[0006] Yet another object of the present disclosure is to solve the problem of compressor oil quantity control.

[0007] In view of the state of the prior art, the overall concept of the present disclosure is to integrate the air intake sealing plate and the oil baffle plate into an integrated component, and to arrange the integrated component between the compressor rotor and the rotor bearing, so that the air intake sealing plate fits the rotor air intake end face of the compressor body and the oil baffle plate abuts the rotor bearing, thereby realizing reliable sealing of the rotor air intake end face of the compressor body and / or realizing the presence of an appropriate amount of refrigerant oil at the rotor bearing. In this way, at least one of the above-mentioned technical problems can be solved.

[0008] In one aspect, the present disclosure provides an integrated component of an air intake sealing plate and an oil baffle plate, wherein the integrated component of the air intake sealing plate and the oil baffle plate is arranged between the rotor and the rotor bearing of the compressor, so that the air intake sealing plate fits the rotor intake end face of the compressor body and the oil baffle plate abuts the rotor bearing. The integrated component of the air intake sealing plate and the oil baffle plate includes a male integrated component and a female integrated component. The male integrated component includes a male air intake sealing plate and a male oil baffle plate combined together by a male connecting portion. The female integrated component includes a female air intake sealing plate and a female oil baffle plate combined together by a female connecting portion. The male connecting portion and the female connecting portion are fixed to each other in a fitting manner, so that after assembly, the male air intake sealing plate and the female air intake sealing plate fit the rotor intake end face of the compressor body in the same plane.

[0009] Since the male sub-assembly and the female sub-assembly are constructed separately, the male suction sealing plate and the female suction sealing plate are also separately constructed and can be arranged in close contact with the rotor suction end face, and the avoidance hole in the prior art is no longer required, thereby avoiding leakage at the rotor suction end face. In addition, the suction sealing plate and the oil baffle plate assembly constructed in this way also blocks the compressor rotor and the rotor bearing and at least partially blocks the rotor suction end face through the suction sealing plate, and allows refrigerant oil to be stored at the rotor bearing through the oil baffle plate.

[0010] In one or more embodiments, the male suction sealing plate and the female suction sealing plate are both arc-shaped plates, and the arc-shaped plates of the male suction sealing plate and the female suction sealing plate are arranged adjacent to each other in the same plane to at least partially block the rotor suction end face. Thus, it is easy to realize that the male suction sealing plate and the female suction sealing plate partially block the rotor suction end face of the compressor body.

[0011] In one or more embodiments, the male air suction sealing plate includes a first male arc-shaped portion, and the female air suction sealing plate includes a first female arc-shaped portion, so as to match the corresponding structure at the sharp corner of the compressor body, thereby ensuring reliable sealing of the compressor.

[0012] In one or more embodiments, the male suction sealing plate includes a second male arc portion whose shape matches the male rotor shaft, and / or the female suction sealing plate includes a second female arc portion whose shape matches the female rotor shaft. Thus, the movement of the male rotor is not interfered.

[0013] In one or more embodiments, the male suction sealing plate further comprises a planar male joint surface to fit against the male rotor suction end surface, and the female suction sealing plate comprises a planar female joint surface to fit against the female rotor suction end surface, thereby ensuring reliable sealing of the compressor.

[0014] In one or more embodiments, the male connecting portion and the female connecting portion are each provided with at least one connecting hole, and are detachably fixed together by a connecting piece passing through the connecting hole.

[0015] In one or more embodiments, the connection hole is a threaded hole, and the connection piece is a threaded connection piece. Thus, a detachably connected male sub-assembly and female sub-assembly are provided.

[0016] In one or more embodiments, the male connection part and the female connection part are fixed together by bonding or welding, thereby providing a permanently connected male sub-assembly and female sub-assembly.

[0017] In one or more embodiments, the male air suction sealing plate and the male oil baffle plate are arranged in parallel with each other, and the male connecting portion extends vertically between the male air suction sealing plate and the male oil baffle plate, and the female air suction sealing plate and the female oil baffle plate are arranged in parallel with each other, and the female connecting portion extends vertically between the female air suction sealing plate and the female oil baffle plate. Thus, male sub-assembly and female sub-assembly that are easy to process and manufacture are provided.

[0018] In one or more embodiments, the male oil baffle plate and the female oil baffle plate are both in the form of a partial ring with a central hole, thereby achieving an oil baffle function for the rotor bearing.

[0019] In one or more embodiments, the male oil baffle plate and the female oil baffle plate each have a first surface at least partially abutting against the compressor body and the outer ring of the corresponding rotor bearing and a second surface opposite to the first surface. Thus, the male oil baffle plate and the female oil baffle plate reliably abut against the corresponding rotor bearing to achieve the oil baffle function.

[0020] In one or more embodiments, the first surface of the male oil baffle plate and the first surface of the female oil baffle plate are provided with recessed portions, thereby preventing the male oil baffle plate and the female oil baffle plate from abutting against the inner ring of the corresponding rotor bearing and interfering with its operation.

[0021] In one or more embodiments, the diameter of the central hole of the male oil baffle plate and the female oil baffle plate is set to be smaller than or equal to the outer diameter of the inner ring of the corresponding rotor bearing but larger than the diameter of the corresponding rotor shaft. Thus, the central hole will not hinder the movement of the female rotor shaft and can achieve the oil blocking function.

[0022] In one or more embodiments, both the male oil baffle plate and the female oil baffle plate are provided with an oil quantity control mechanism, thereby ensuring that a proper amount of refrigeration oil is stored at the rotor bearing by utilizing the oil quantity control mechanism.

[0023] In one or more embodiments, both the male oil baffle plate and the female oil baffle plate are provided with an oil quantity control mechanism, and the oil quantity control mechanism is configured so that the diameter of the center hole of the male oil baffle plate and the female oil baffle plate is equivalent to the outer diameter of the inner ring of the corresponding bearing, thereby providing a first oil quantity control method.

[0024] In one or more embodiments, the oil quantity control mechanism includes an oil control hole for controlling the maximum liquid level of the refrigeration oil, thereby providing a second oil quantity control method.

[0025] In one or more embodiments, the oil control holes of the male oil baffle plate and the female oil baffle plate are arranged so that the lowermost edge of the corresponding oil control hole is equal to or slightly higher than the uppermost edge of the lowermost rolling element of the corresponding rotor bearing. Thus, the arrangement of the oil control holes ensures that the amount of refrigerant oil reaches the amount that just immerses the lowermost rolling element of the rotor bearing, so as to seal an appropriate amount of refrigerant oil.

[0026] In one or more embodiments, the oil control holes of the male oil baffle plate and the female oil baffle plate are located on either side relative to the lowest rolling element of the corresponding rotor bearing in the horizontal direction, thereby providing possible locations for the oil control holes.

[0027] In one or more embodiments, the horizontal distance between the central axis of the oil control holes of the male and female oil baffles relative to the central axis of the lowest rolling element of the corresponding rotor bearing is smaller than the radius of the central hole of the corresponding oil baffle, thereby providing a possible location for the oil control holes.

[0028] In one or more embodiments, the male suction seal plate and the female suction seal plate are embedded in the compressor body, and the male oil baffle plate and the female oil baffle plate are fixed to the compressor body by fasteners. Thus, the integrated part of the suction seal plate and the oil baffle plate is firmly assembled to the compressor body in a simple manner.

[0029] In another aspect, the present disclosure provides a compressor, the compressor comprising an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure, thereby enabling the compressor to operate reliably and efficiently.

[0030] In another aspect, the present disclosure provides a fluid mechanical device, wherein the fluid mechanical device comprises a compressor according to the present disclosure, thereby enabling the fluid mechanical device to operate reliably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present disclosure will be more easily understood by the following detailed description in conjunction with the accompanying drawings, in which the same reference numerals represent the same elements. The accompanying drawings are schematic and non-restrictive. The elements in the accompanying drawings are not necessarily drawn to scale. For example, the elements may be enlarged for the purpose of illustration, or may be reduced in scale to keep the drawings clear and easy to understand. In the accompanying drawings:

[0032] Figure 1A The front view of the air suction sealing plate of the prior art is schematically shown;

[0033] Figure 1B A schematic diagram shows a front view of a prior art suction sealing plate mounted on a compressor;

[0034] Figure 1C Schematically shows Figure 1B An enlarged view of the portion indicated by A in FIG.

[0035] Figure 2A A perspective view schematically shows an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure;

[0036] Figure 2B A schematic diagram shows a front view of an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure;

[0037] Figure 2C Schematically showing a left side view of an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure;

[0038] Figure 3A A schematic diagram shows a front view of an integrated component of a suction sealing plate and an oil baffle plate according to the present disclosure assembled in a compressor;

[0039] Figure 3B The figure schematically shows a side cross-sectional view of an integrated component of a suction sealing plate and an oil baffle plate according to the present disclosure assembled in a compressor, cut along a vertical plane passing through the shaft of a male rotor;

[0040] Figure 4A A schematic diagram showing a first example of an oil quantity control mechanism of an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure; and

[0041] Figure 4B A schematic diagram of a second example of an oil quantity control mechanism of an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure is shown. DETAILED DESCRIPTION

[0042] The present disclosure will be described below with reference to the accompanying drawings, wherein the accompanying drawings show several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below. The embodiments described below are intended to make the disclosure of the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should be understood that in all the drawings, the same reference numerals represent the same elements.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The terms "including" and "having" and any derivatives thereof in the specification and claims of the present disclosure and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0044] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. are only used to distinguish different objects and should not be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of the present disclosure, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0047] In the description of the embodiments of the present disclosure, the terms "inside", "outside", "horizontal", "vertical", "parallel" and "perpendicular" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present disclosure and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present disclosure.

[0048] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "installation", "assembly" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0049] As is known, the sealing plate can play a role in blocking the rotor and the rotor bearing in the screw compressor to prevent the bearing from contacting the rotor suction end face during operation and causing scratches. To this end, an air suction sealing plate provided in the prior art is usually arranged between the compressor rotor and the rotor bearing in the compressor body and partially blocks the rotor suction end face of the compressor body. Figures 1A-1C As shown, since there is a sharp corner 22 of the compressor body at the intersection of the two rotor cavities of the compressor body 20, the air intake sealing plate 10 of the prior art needs to be able to avoid the sharp corner 22 of the body. For this reason, the air intake sealing plate 10 is usually designed at the lower part with two arcs that converge at the sharp corner 22 of the body. However, when processing the two arcs of the air intake sealing plate 10, a tool avoidance space is required at the final convergence of the two arcs. Usually, an avoidance hole 12 is "dug" upward, and the diameter of the avoidance hole depends on the diameter of the tool selected when processing the two arcs. In mass production, in order to improve efficiency, the diameter of the tool is generally not less than 8mm. Through tool path simulation, it can be obtained that the diameter of the avoidance hole needs to be above 5mm. For screw compressors, the gap values ​​at various locations often need to be controlled at the order of 0.01 to 0.1mm. Therefore, if the gap caused by machining the avoidance hole is too large, leakage will occur when the compressor inhales, resulting in poor air intake sealing performance, which affects the performance of the compressor. For this reason, the avoidance hole 12 needs to be eliminated.

[0050] In addition, a certain amount of refrigerant oil needs to be present around the rotor bearing of the compressor to ensure that the rotor bearing is in an "oil lubricated and cooled" state when moving. Therefore, an oil baffle needs to be provided at the rotor bearing to seal a certain amount of refrigerant oil.

[0051] In view of the state of the prior art, the present disclosure contemplates integrating the air intake sealing plate and the oil baffle plate into an integrated component, and arranging the integrated component between the compressor rotor and the rotor bearing, thereby not only achieving reliable sealing of the rotor intake end face of the compressor body but also ensuring the presence of a certain amount of refrigerant oil at the rotor bearing.

[0052] The technical solution of the present disclosure is described in detail below through the accompanying drawings and embodiments.

[0053] FIG. 2A to FIG. 2C A perspective view, a front view and a side view of an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure are schematically shown respectively. Figure 3A and Figure 3B The front view and the side sectional view schematically show respectively the integrated component of the suction sealing plate and the oil baffle plate according to the present disclosure assembled in the compressor.

[0054] Reference Figure 2A and 2B, the integrated component 1000 of the air intake sealing plate and the oil baffle plate includes an oil baffle plate and an air intake sealing plate integrated into one. The integrated component of the air intake sealing plate and the oil baffle plate can be used in a compressor such as a screw compressor. The integrated component of the air intake sealing plate and the oil baffle plate can be arranged between the compressor rotor and the rotor bearing of the compressor body, so that the air intake sealing plate fits the rotor intake end face of the compressor body and the oil baffle plate is installed on the compressor body against the rotor bearing. Thus, the integrated component of the air intake sealing plate and the oil baffle plate can block the compressor rotor and the rotor bearing, at least partially block the rotor intake end face of the compressor body and / or ensure that refrigerant oil is present at the rotor bearing. Specifically, the air intake sealing plate is embedded in the shell of the compressor body 20 and fits the rotor intake end face, and the oil baffle plate is fixed to the compressor body by fasteners (such as screws). Since the air suction seal plate does not need to be installed by fasteners and only the oil baffle plate is fixed to the compressor body by fasteners, the integrated component 1000 of the air suction seal plate and the oil baffle plate of the present disclosure realizes its stable assembly in a simple manner.

[0055] The integrated component 1000 of the air suction sealing plate and the oil baffle plate includes a male sub-assembly 100 and a female sub-assembly 200. The male sub-assembly 100 and the female sub-assembly 200 have similar structures. The male sub-assembly 100 and the female sub-assembly 200 are configured to be fixed together in a close fit with each other. The male sub-assembly 100 includes a male oil baffle plate 110 and a male air suction sealing plate 120 combined together by a male connecting portion 130. The female sub-assembly 200 includes a female oil baffle plate 210 and a female air suction sealing plate 220 combined together by a female connecting portion 230. The male connecting portion 130 and the female connecting portion 230 are fixed together in a close fit with each other, so that after assembly, the male air suction sealing plate 120 and the female air suction sealing plate 220 are in a close fit with the rotor suction end face of the compressor body in the same plane. At this time, the male oil baffle plate and the female oil baffle plate can abut the rotor bearing in another plane parallel to the same plane. The male oil baffle plate 110 and the female oil baffle plate 210 may be fixed to the compressor body by fasteners (such as a plurality of screws) respectively (see Figure 3A ).exist Figure 2A and Figure 2B In the example of , the male oil baffle plate 110 and the female oil baffle plate 210 each have 4 connection holes. The male oil baffle plate 110 and the male suction air sealing plate 120 can be arranged parallel to each other. The female oil baffle plate 210 and the female suction air sealing plate 220 can be arranged parallel to each other. The male connecting portion 130 can be configured to extend vertically between the male suction air sealing plate 120 and the male oil baffle plate 110, and the female connecting portion 230 can be configured to extend vertically between the female suction air sealing plate 220 and the female oil baffle plate 210. The male connecting portion 130 and the female connecting portion 230 can be detachably connected together by means of a connecting member 300. The connecting member 300 can be a threaded connecting member, such as a screw or a bolt. The male connecting portion 130 and the female connecting portion 230 can also be bonded or welded together.

[0056] Since the male sub-assembly 100 and the female sub-assembly 200 are constructed separately, the male suction sealing plate 120 and the female suction sealing plate 220 are also separately constructed and can be arranged to fit the rotor suction end face. The avoidance holes required by the tool for machining the integrated suction sealing plate in the prior art are no longer needed, thereby avoiding leakage at the rotor suction end face.

[0057] like Figure 2B As shown, the male suction sealing plate 120 is in the form of an arc plate. The male suction sealing plate 120 is embedded in the shell of the compressor body and fits with the male rotor suction end face, and the male suction sealing plate 120 is arranged on the inner side of the compressor male rotor shaft, so as to facilitate the male suction sealing plate 120 to partially block the male rotor suction end face of the compressor body 20. In this article, the "inside" of the compressor rotor shaft refers to the side between the adjacent male rotor shaft and the female rotor shaft, and the side opposite to the inner side is the outer side. The male suction sealing plate 120 includes a first male arc-shaped portion 124 and a second male arc-shaped portion 122. The first male arc-shaped portion 124 is configured to match the corresponding structure at the body corner 22 of the compressor body 20. The arc shape of the second male arc-shaped portion 122 is consistent with the shape of the male rotor shaft so as not to interfere with the movement of the male rotor. The male suction seal plate 120 also includes a planar male joint surface 126, which is configured to fit against the male rotor suction end surface. The male joint surface 126 extends parallel to the second surface 114 of the male oil baffle plate 110. The male connecting portion 130 extends vertically from the second surface 114 of the male oil baffle plate 110 to the male joint surface 126 of the male suction seal plate 120.

[0058] The male oil baffle plate 110 is in the form of a partial ring with a central hole. The diameter of the central hole of the male oil baffle plate 110 can be set to be smaller than or equal to the outer diameter of the inner ring 420 of the male rotor bearing but larger than the diameter of the male rotor shaft. Therefore, the central hole will not hinder the movement of the male rotor shaft and can achieve the oil blocking function. Figure 3B The male oil baffle plate 110 has a first surface 112 that can at least partially abut against the compressor body and the outer ring 410 of the male rotor bearing 400, and a second surface 114 opposite to the first surface. The first surface 112 of the male oil baffle plate 110 may also be provided with a recessed portion 116 to avoid abutting against the inner ring 420 of the male rotor bearing and interfering with its operation, and to reduce weight.

[0059] Likewise, if Figure 2BAs shown, the female suction sealing plate 220 is in the form of an arc plate. The female suction sealing plate 220 is embedded in the shell of the compressor body and fits with the female rotor suction end face, and the female suction sealing plate 220 is arranged on the inner side of the female rotor shaft of the compressor, so as to easily realize that the female suction sealing plate 220 partially blocks the female rotor suction end face on the compressor body 20. The female suction sealing plate 220 includes a first female arc-shaped portion 224 and a second female arc-shaped portion 222. The first female arc-shaped portion 224 is configured to match the corresponding structure at the body corner 22 of the compressor body 20. The arc shape of the second female arc-shaped portion 222 is consistent with the shape of the male rotor shaft so as not to interfere with the movement of the female rotor. The female suction sealing plate 220 also includes a planar female joint surface 226, which is configured to fit against the female rotor suction end face. The planar male joint surface 126 and the female joint surface 226 are arranged adjacent to each other in the same plane and are in contact with the corresponding rotor suction end surface to at least block the rotor suction end surface on the inner side. The female joint surface 226 extends parallel to the second surface of the female oil baffle plate 210. The female connecting portion 230 extends vertically from the second surface of the female oil baffle plate 210 to the female joint surface 226 of the female gas sealing plate 220.

[0060] The female oil baffle plate 210 is in the form of a partial ring with a center hole. The hole diameter of the center hole of the female oil baffle plate 210 can be set to be less than or equal to the outer diameter of the inner ring of the female rotor bearing but greater than the diameter of the female rotor shaft. As a result, the center hole will not hinder the movement of the female rotor shaft and can achieve the oil baffle function. The female oil baffle plate 210 has a first surface that can at least partially abut against the compressor body and the outer ring of the female rotor and a second surface opposite to the first surface. The first surface of the female oil baffle plate 210 can be provided with a recessed portion to avoid abutting against the inner ring of the female rotor bearing and interfering with its operation, and can also reduce weight.

[0061] The male connection part 130 has a male inner surface and a male outer surface opposite to each other, and the male inner surface faces the central hole of the male oil baffle plate 110. The female connection part 230 has a female inner surface and a female outer surface opposite to each other, and the female inner surface faces the central hole of the female oil baffle plate 210. The male outer surface of the male connection part 130 and the female outer surface of the female connection part 230 are in close contact with each other. The male connection part 130 and the female connection part 230 may also be provided with at least one connection hole for fastening together through the connection member 300. Figure 2A and 2BIn the example shown, the male connection part 130 and the female connection part 230 are each provided with a corresponding threaded hole. The male connection part 130 and the female connection part 230 are fastened together in a snug fit with each other by means of a threaded connection. After assembly, the male suction sealing plate 120 and the female suction sealing plate 220 are located in the same plane and fit closely to the rotor suction end face. Since the male connection part 130 and the female connection part 230 fit closely together and the first male arc-shaped portion 124 of the male suction sealing plate 120 and the first female arc-shaped portion 224 of the female suction sealing plate 220 respectively match the corresponding structures at the sharp corners of the compressor body (see Figure 3A ), the male suction sealing plate 120 and the female suction sealing plate 220 can be closely fitted to the compressor body without the need to set the avoidance hole 12 of the prior art. Since there is only a gap generated by the fit between the male connecting part 130 and the female connecting part 230, the gap is on the order of 0.01 to 0.1 mm, which is much smaller than the diameter of the avoidance hole of the prior art of more than 5 mm. Therefore, the leakage area of ​​the gap is significantly smaller than the leakage area of ​​the avoidance hole 12 of the prior art, thereby achieving a better sealing of the rotor suction end face.

[0062] The oil baffle plate may be provided with an oil quantity control mechanism to keep an appropriate amount of refrigerant oil around the rotor bearing. Specifically, the male oil baffle plate 110 and the female oil baffle plate 210 may be configured to ensure that an appropriate amount of refrigerant oil is kept around the rotor bearing by making the center hole have a diameter of an appropriate size. In addition, the male oil baffle plate 110 and the female oil baffle plate 210 may each be provided with an oil quantity control mechanism such as an oil control hole to ensure an appropriate amount of oil.

[0063] The design principle of the male oil baffle plate 110 and the female oil baffle plate 210 is to ensure the presence of refrigeration oil and control the maximum liquid level of the refrigeration oil. The maximum liquid level needs to ensure that the amount of refrigeration oil reaches just enough to immerse the lowest rolling element of the rotor bearing, and the liquid level plane is roughly tangent to the lowest edge of the inner ring of the bearing.

[0064] In order to meet this requirement, in one embodiment, the oil quantity control mechanism can be configured to achieve this by designing the diameter size of the central hole of the male oil baffle plate 110 and the female oil baffle plate 210. Figure 4A As shown, when the hole diameter D of the center hole of the male oil baffle plate 110 and the female oil baffle plate 210 is equal to the outer diameter d of the inner ring of the corresponding bearing, the liquid level control of the refrigerant oil can be satisfied. In other words, in this case, the oil quantity control mechanism can be the center hole of the male oil baffle plate 110 and the center hole of the female oil baffle plate 210.

[0065] In the actual design process, considering the assembly process, it is difficult to ensure that the hole diameter D of the center hole of the male oil baffle plate 110 and the female oil baffle plate 210 is equivalent to the outer diameter d of the inner ring of the bearing. In this case, in order to meet the oil quantity control requirements, in another embodiment, the oil quantity control mechanism can be an oil control hole set at an appropriate position of the oil baffle plate. The shape of the oil control hole is not limited to a circular shape, and can be a through opening of any shape, as long as it ensures that there is no excess refrigerant oil at the bearing. Specifically, as Figure 4B As shown, the oil quantity control mechanism may include a male oil control hole 118 disposed on the male oil baffle plate 110 and a female oil control hole 218 disposed on the female oil baffle plate 210 .

[0066] The following description will be made by taking the arrangement of the male oil control hole 118 as an example. The arrangement of the female oil control hole 218 can be similarly performed and will not be described in detail. Figure 4B As shown, the male rotor bearing has a cylindrical roller bearing rolling body 430 located at the bottom. The height of the oil control hole 118 of the male oil baffle 110 can be designed to be based on the cylindrical roller bearing rolling body 430. The lowermost edge of the oil control hole 118 is equal to or slightly higher than the uppermost edge of the cylindrical roller bearing rolling body 430. The oil control hole 118 can be located on either side relative to the cylindrical roller bearing rolling body 430 in the horizontal direction. The horizontal distance between the central axis of the oil control hole 118 and the central axis of the cylindrical roller bearing rolling body 430 is less than the radius of the central hole of the male oil baffle 110. As a result, the refrigerant oil can immerse the lowermost cylindrical roller bearing rolling body to facilitate lubrication and cooling of the internal bearings of the compressor, but the amount of oil is not too much to avoid blocking the rotation of the rotor when the rotor rotates at high speed, which naturally avoids the need for additional "refrigerant oil stirring work" in addition to the normal work of the rotor.

[0067] Therefore, the integrated component of the air suction sealing plate and the oil baffle plate according to the present disclosure ensures that a proper amount of refrigerant oil is stored at the rotor bearing through the oil control holes provided by the male oil baffle plate 110 and the female oil baffle plate 210 .

[0068] The present disclosure also relates to a compressor, which comprises an integrated component of an air suction sealing plate and an oil baffle plate according to the present disclosure, so that the compressor can operate reliably and efficiently.

[0069] The present disclosure also relates to a fluid mechanical device, which includes the above-mentioned compressor. Since the compressor of the present disclosure can improve energy efficiency, the fluid mechanical device of the present disclosure also has the above-mentioned beneficial technical effects.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, it should be understood by those of ordinary skill in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An integrated component of an air intake sealing plate and an oil baffle plate, wherein the integrated component of the air intake sealing plate and the oil baffle plate is arranged between a rotor and a rotor bearing of a compressor, so that the air intake sealing plate fits against the rotor intake end surface of the compressor body and the oil baffle plate abuts against the rotor bearing, It is characterized in that The integrated part of the air suction sealing plate and the oil baffle plate comprises: A male sub-assembly, the male sub-assembly comprising a male air suction sealing plate and a male oil baffle plate combined together by a male connecting portion; and A female sub-assembly, wherein the female sub-assembly comprises a female air suction sealing plate and a female oil baffle plate which are combined together through a female connecting portion; The male connection part and the female connection part are fixed to each other in a close fit, so that after assembly, the male suction sealing plate and the female suction sealing plate are in close fit with the rotor suction end surface of the compressor body in the same plane.

2. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 1, characterized in that: The male suction sealing plate and the female suction sealing plate are both arc-shaped plates, and the arc-shaped plates of the male suction sealing plate and the female suction sealing plate are arranged adjacent to each other in the same plane to at least partially block the rotor suction end face.

3. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 1, characterized in that: The male suction sealing plate includes a first male arc-shaped portion, and the female suction sealing plate includes a first female arc-shaped portion to match the corresponding structure at the body corner of the compressor body.

4. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 3 is characterized in that: The male air suction sealing plate includes a second male arc-shaped portion whose shape matches the male rotor shaft, and / or the female air suction sealing plate includes a second female arc-shaped portion whose shape matches the female rotor shaft.

5. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: The male suction sealing plate also includes a planar male joint surface to fit against the male rotor suction end surface, and the female suction sealing plate includes a planar female joint surface to fit against the female rotor suction end surface.

6. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: The male connecting part and the female connecting part are each provided with at least one connecting hole, and are detachably fixed together by a connecting piece passing through the connecting hole.

7. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 6, characterized in that: The connecting hole is a threaded hole, and the connecting piece is a threaded connecting piece.

8. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: The male connecting part and the female connecting part are fixed together by bonding or welding.

9. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: The male air suction sealing plate and the male oil baffle plate are arranged parallel to each other, and the male connecting part extends vertically between the male air suction sealing plate and the male oil baffle plate, and the female air suction sealing plate and the female oil baffle plate are arranged parallel to each other, and the female connecting part extends vertically between the female air suction sealing plate and the female oil baffle plate.

10. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: The male oil baffle plate and the female oil baffle plate are both in the form of a partial ring with a central hole.

11. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 10, characterized in that: The male oil baffle plate and the female oil baffle plate each have a first surface at least partially abutting against the compressor body and the outer ring of the corresponding rotor bearing and a second surface opposite to the first surface.

12. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 11, characterized in that: A first surface of the male oil baffle plate and a first surface of the female oil baffle plate are provided with a recessed portion.

13. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 10, characterized in that: The hole diameters of the central holes of the male oil baffle plate and the female oil baffle plate are set to be smaller than or equal to the outer diameter of the inner ring of the corresponding rotor bearing but larger than the diameter of the corresponding rotor shaft.

14. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: Both the positive oil baffle plate and the negative oil baffle plate are provided with oil quantity control mechanisms.

15. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 10, characterized in that: The male and female oil baffles are both provided with oil quantity control mechanisms, which are configured such that the diameters of the central holes of the male and female oil baffles are equivalent to the outer diameters of the inner rings of the corresponding bearings.

16. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 14, characterized in that: The oil quantity control mechanism comprises an oil control hole for controlling the maximum liquid level of the refrigeration oil.

17. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 16, characterized in that: The oil control holes of the male oil baffle plate and the female oil baffle plate are arranged so that the lowermost edge of the corresponding oil control hole is equal to or slightly higher than the uppermost edge of the lowermost rolling body of the corresponding rotor bearing.

18. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 17, characterized in that: The oil control holes of the male oil baffle plate and the female oil baffle plate are located on either side relative to the lowest rolling element of the corresponding rotor bearing in the horizontal direction.

19. The integrated component of the air suction sealing plate and the oil baffle plate according to claim 17 or 18, characterized in that: The horizontal distance between the central axis of the oil control holes of the male and female oil baffle plates and the central axis of the lowest rolling element of the corresponding rotor bearing is smaller than the radius of the central hole of the corresponding oil baffle plate.

20. The integrated component of the air suction sealing plate and the oil baffle plate according to any one of claims 1 to 4, characterized in that: The male suction sealing plate and the female suction sealing plate are embedded in the compressor body, and the male oil baffle plate and the female oil baffle plate are fixed to the compressor body through fasteners.

21. A compressor, comprising an integrated component of an air suction sealing plate and an oil baffle plate according to any one of claims 1 to 20.

22. A fluid mechanical device, comprising the compressor according to claim 21.

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